大跨度钢管混凝土拱桥的稳定承载力分析  

An Analysis of Stable Bearing Capacity of Long Span Steel Tubular Concrete Arch Bridge

作　　者：颜全胜[1] 徐升桥[2] 

机构地区：[1]华南理工大学交通学院,广东广州510640 [2]铁道专业设计院,北京100020

出　　处：《铁道标准设计》2003年第7期16-18,共3页Railway Standard Design

摘　　要：以湖南南县茅草街特大桥为例 ,讨论大跨度钢管混凝土拱桥施工阶段和运营阶段的弹性稳定和极限承载力。分析计算时 ,考虑了拱桥结构分阶段刚度变化、截面逐次形成以及构件的极限承载力等影响。A discussion was presented of elastic stability and ultimate bearing capacity of long span steel tubular concrete arch bridge during construction and operation. In analysis and computation, the impact of the following factors was taken into consideration: rigidity variation of bridge structure at different stages; successive formation of section; and ultimate bearing capacity of structural members.

关 键 词：大跨度钢管混凝土拱桥 弹性稳定 极限承载力 非线性 结构分析 

分 类 号：U448.22[建筑科学—桥梁与隧道工程] U441[交通运输工程—道路与铁道工程]